Rename foursquare_config.yml.example to spec/foursquare_config.yml. Close #5.

Having an example yml file is confusing as it implies that the values
within it should be changed.
Merge pull request #9 from billymonk/feature/rename_yml_example

Rename foursquare_config.yml.example to spec/foursquare_config.yml. Clos...